Floating LNG (liquefied natural gas) liquefying factory ship bottom-supported foundation structure and construction method thereof

Abstract

The invention discloses a floating LNG (liquefied natural gas) liquefying factory ship bottom-supported foundation structure. The structure comprises a riprap foundation bed, a rubber steel base plate, bottom protecting rock blocks and a top fence plate. With the adoption of the floating LNG liquefying factory ship bottom-supported foundation structure, the problem about the stability of bottom supporting of a floating LNG liquefying factory ship under an extreme storm condition can be solved, shortening of production operation time of a factory due to unnecessary evacuation is avoided, and the production efficiency is improved. The floating liquefying factory ship bottom-supported foundation structure can be directly arranged behind an LNG wharf and an approach bridge to facilitate transportation of produced LNG products. The rubber steel base plate is used for increasing the friction coefficient between a bottom plate of the floating LNG liquefying factory ship and the riprap foundation bed and improving anti-sliding stability of the floating LNG liquefying factory ship, can avoid local stress concentration due to direct contact of the bottom plate of the floating LNG liquefyingfactory ship with rock blocks and has a shock insulation effect under the earthquake action; the bottom protecting rock blocks and the top fence plate are used for protecting the riprap foundation bedfrom being scoured by seabed currents.

Description

technical field [0001] The invention relates to a bottom-mounted foundation structure and a construction method thereof, in particular to a bottom-mounted foundation structure of a floating LNG liquefaction plant and a construction method thereof, belonging to the field of port terminals and floating LNG liquefaction industries. Background technique [0002] Liquefied Natural Gas (LNG) is a kind of clean energy, which has attracted more and more attention from the energy industry, port terminals and floating LNG liquefaction industry. Floating LNG liquefaction plant ships mainly include corresponding hull utilities and LNG liquefaction process equipment, which are expensive to manufacture and generally need to be manufactured in a special dock, and then consigned to the corresponding sea area by tugboat, which is flexible and convenient to use. The main function of the device is to realize the purification and liquefaction process of LNG gas source. [0003] However, under ...

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Problems solved by technology

[0005] The present invention proposes a foundation structure of a floating LNG liquefaction plant and its construction method, which solves the problem of breaking and destroying the keel structure of a floating LNG liquefaction plant ship due to uneven subsidence of the foundation in the prior art. Sitting directly on the bottom is not safe

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